Head-neck posture support



FIG. 1 is a perspective view of the head-neck posture support of the instant invention;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a lower end view thereof; and,

FIG. 7 is an upper end view thereof. 

CLAIM The ornamental design for a head-neck posture support, as shown and described. 